Question: what time was Sergey Brin's networth estimated as $3.340000000000?
Paraphrase: Sergey Brin's net worth was estimated as $3.340000000000 on what date?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q92764 p:P2218 ?s . ?s ps:P2218 ?x filter(contains(?x , '3.34e+10')) . ?s pq:P585 ?value}